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AD8190 Datasheet

2:1 HDMI/DVI Switch

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2:1 HDMI/DVI Switch with Equalization
AD8190
FEATURES
Two inputs, one output HDMI/DVI links
Enables HDMI 1.2a-compliant receiver
Four TMDS channels per link
Supports 250 Mbps to 1.65 Gbps data rates
Supports 25 MHz to 165 MHz pixel clocks
Equalized inputs for operation with long HDMI cables
(20 meters at 1080p)
Fully buffered unidirectional inputs/outputs
Globally switchable 50 Ω on-chip terminations
Pre-emphasized outputs
Low added jitter
Single-supply operation (3.3 V)
Four auxiliary channels per link
Bidirectional unbuffered inputs/outputs
Flexible supply operation (3.3 V to 5 V)
HDCP standard compatible
Allows switching of DDC bus and two additional signals
Output disable feature
Reduced power dissipation
Output termination removal
Two AD8190s support HDMI/DVI dual-link
Standards compliant: HDMI receiver, HDCP, DVI
Serial (I2C slave) control interface
56-lead, 8 mm x 8 mm, LFCSP, Pb-free package
APPLICATIONS
Multiple input displays
Projectors
A/V receivers
Set-top boxes
Advanced television (HDTV) sets
GENERAL DESCRIPTION
The AD8190 is an HDMI/DVI switch featuring equalized
TMDS inputs and pre-emphasized TMDS outputs, ideal for
systems with long cable runs. Outputs can be set to a high
impedance state to reduce the power dissipation and/or allow
the construction of larger arrays using the wire-OR technique.
The AD8190 is provided in a space saving, 56-lead, LFCSP,
surface-mount, Pb-free, plastic package and is specified to
operate over the −40°C to +85°C temperature range.
FUNCTIONAL BLOCK DIAGRAM
I2C_SDA
I2C_SCL
I2C_ADDR
VTTI
RESET
SERIAL INTERFACE
CONFIG
INTERFACE
CONTROL
LOGIC
AD8190
AVCC
DVCC
AMUXVCC
AVEE
DVEE
IP_A[3:0]
IN_A[3:0]
+
IP_B[3:0]
IN_B[3:0]
+
4
4
SWITCH
4
CORE
4 EQ
PE 4
4
HIGH SPEED
BUFFERED
VTTO
+
OP[3:0]
ON[3:0]
VTTI
AUX_A[3:0]
AUX_B[3:0]
4
4
SWITCH
CORE
4
LOW SPEED UNBUFFERED
BIDIRECTIONAL
AUX_COM[3:0]
Figure 1.
SET-TOP BOX
TYPICAL APPLICATION
HDTV SET
HDMI
RECEIVER
DVD PLAYER
AD8190
DVD
01:18
Figure 2. Typical AD8190 Application for HDTV Sets
PRODUCT HIGHLIGHTS
1. Supports data rates up to 1.65 Gbps, enabling UXGA
(1600 × 1200) DVI resolutions and 1080p HDMI formats.
2. Input cable equalizer enables use of long cables at the
input (more than 20 meters of 24 AWG cable at 1080p).
3. Auxiliary switch allows routing of the DDC bus and two
additional single-ended signals for a single chip, fully
HDMI 1.2a receive-compliant solution.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.


Analog Devices Semiconductor Electronic Components Datasheet

AD8190 Datasheet

2:1 HDMI/DVI Switch

No Preview Available !

AD8190
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
Typical Application........................................................................... 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 5
Thermal Resistance ...................................................................... 5
Maximum Power Dissipation ..................................................... 5
ESD Caution.................................................................................. 5
Pin Configuration and Function Descriptions............................. 6
Typical Performance Characteristics ............................................. 8
Theory of Operation ...................................................................... 12
Introduction ................................................................................ 12
Input Channels............................................................................ 12
Output Channels ........................................................................ 12
Switching Mode .......................................................................... 13
Auxiliary Lines Switching.......................................................... 13
REVISION HISTORY
7/06—Revision 0: Initial Version
Serial Control Interface ................................................................. 14
Reset ............................................................................................. 14
Write Procedure.......................................................................... 14
Read Procedure........................................................................... 15
Switching/Update Delay............................................................ 15
Configuration Registers................................................................. 16
High Speed Device Modes Register ......................................... 16
Auxiliary Device Modes Register............................................. 16
Receiver Settings Register ......................................................... 17
Input Termination Pulse Register ............................................ 17
Receive Equalizer Register ........................................................ 17
Transmitter Settings Register.................................................... 17
Application Notes ........................................................................... 18
Pinout........................................................................................... 18
Cable Lengths and Equalization............................................... 19
The AD8190 as a Single-Channel Buffer ................................ 19
PCB Layout Guidelines.............................................................. 19
Outline Dimensions ....................................................................... 23
Ordering Guide .......................................................................... 23
Rev. 0 | Page 2 of 24


Part Number AD8190
Description 2:1 HDMI/DVI Switch
Maker Analog Devices
Total Page 24 Pages
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